Geoege crompton and hoeace wyman



(No Model.)

G. CROMPTON 8v H. WYMAN.-

MBGHANIUAL MOVEMENT. No. 336,624. Patented Peb.f23, 1886.

lmimliwlNINl N. Prrzns mammography. washington, o. Q

UNITED STATES PATENT OEEICE GEORGE CROMPTON AND HORACE VY-MAN, OF WORCESTER, MASSACHUSETTS,

ASSIGNORS TO SAID CROMPTON.

MECHANICAL MOVEIVI ENT.

SPECIFICATION forming part of Letters Patent No. 336,624, dated February 23, 1886.

Application filed September l1, i885. Serial No. 176,5?56. (No model.)

To ail whom, t may concern: ing different positions which the devices may Be it known that we, GEORGE CROMPTON be made to assume by stopping the cranks in and HORACE WYMAN,both of the city and coundifferent positions.

ty of Worcester, State of Massachusetts, have The board A, which may be part of' a mainvented an Improvementin Mechanical Movechine frame or other thing with which the de- 55 ments, of which the following description, in vices to be described are to be used, has upon connection with the accompanying drawings, it suitable guides, a a, for the rod B, which is a specification, like letters on the drawings is to be reciprocated longitudinally over -dii'- representing like parts. ferent distances in the same interval ol' XO This invention hasA for its object the productime, the said rod being marked to indicate 6o tion of a novel and simple mechanism wheredifferent steps or divisions, as from l to G, inby a bar or rod may be reciprocated for difelusive, the block being marked by a line, o, ferent distances in one or the other direction, to indicate the effective position of the rod, and be left at rest in either one of several deit being possible bythe devices to bedescribed iined positions, the time occupied in the moveto leave any step or division of the said rod 65 ment of the rod being the same, whether it is with its bottom line opposite the line o. The made to pass from one to its next position or rod B has joined to ita cord or chain, b,which, from its extreme positions. extended over a pulley, b', is attached to one In the mechanical movement herein deend of the main lever o, having its fulcrum at scribed there are employed a main and an auxc on the auxiliary lever d, the fulcrurn el' of 7o iliary lever, the fulcrum of the main lever which is lnade to enter the guide d2. The fulbeing on the auxiliary lever, all as usual; but crum ci of the auxiliary lever has attached to instead of holding the auxiliary lever so that it the link or slide d3, pivoted to the Fulcrumit has but two positions under the control of moving lever e, mounted on a pin or stud c. its auxiliary devices we have provided means The upper end of the levers d c c have at- 75 whereby the fulcrum of the auxiliary lever tached to them, respectively, the connecting may be made to occupy different positions, rods d5, c2, et, the said connecting-rods being which enable the rod to be moved for a greater joined, respectively, to the cranks d" c" e, distance, and to be left in a greater number mounted, as herein shown, on the stud g. of intermediate positions, than if the fulcrum The cranks herein shown are composed of 8c` of the auxiliary lever were fixed or movable, disks with attached crank-pins, all the disks the movement shown resulting in six different being on one stud, but in practice the disks positions. will be toothed, each will turn on a pin car- Our invention consists, essentially, in a nieried by a vibrator, and each disk will, at the chanical movement composed of an auxiliary desired timeand in the desired order, be given 85 orshortlever, amain lever mounted thereon, a a little more than a semi-rotation by partial rod and connections between it and the said gears, all as in United States Patent No. main lever, and two connecting-rods, and two 281,842, dated July 24, 1883, to which refercranks to move them, combined with a link or ence may be had. rPhe movement of lever e 4@ slide joined with the fulcrum of the auxiliary insures two positions for the fulcrum of the 9o lever, and with means to move the said link auxiliary lever, and in either of its two posior slide and fulcrum of the auxiliary lever, tions it may be turned bythe crank d and conwhereby the fulcrum of the main lever is necting-rod di. The change of position of the made to occupy either one of the two diffulcrum d', (see the diagram Fig. 3,) and the ferent positions, and the said lever be made movement of the lever d thereon, also effect 95 movable on its fulcrum in such positions. changes of the fulcrum c of the main lever, Figure l in side elevation represents a as shown by the said diagram, and by moving block on which are mounted devices to enable the lever c on the fulcrum c in any of its four our invention to be understood; Fig. 2, atop positions, Fig. 3, the end of the lever c, to view thereof, and Fig. 3 a diagram illustratwhich the cordb is attached, is made to occupy Ice one of six positions indicated in the Suid ig- In testimony whereof we have signed our ure, the rod B being correspondingly moved names to this specfoation in the presence of with relation to the lever o. two subscribing witnesses.

We elainu- 5 The main lever, and the auxiliary lever on GEO. CROMPTON.

which the main lever has its fulorum, and the HORACE VVYMAN. link or slide to move the fnlerum of the said auxiliary lever, combined with means, sub- `Witnesses: stantially as described, to move the said link HENRY E. HILL,

ro or slide and the said main and auxiliary JOHN B. SYME.

levers, as and for Iche purpose seb forth. 

